EP 3771454 B1 20221116 - SEALING DEVICE FOR REPAIRING PERFORATION OF MAXILLARY SINUS MUCOSA
Title (en)
SEALING DEVICE FOR REPAIRING PERFORATION OF MAXILLARY SINUS MUCOSA
Title (de)
DICHTUNGSVORRICHTUNG ZUR REPARATUR DER PERFORATION DER SCHLEIMHAUT VON SINUS MAXILLARIS
Title (fr)
DISPOSITIF D'ÉTANCHÉITÉ POUR LA RÉPARATION D'UNE PERFORATION DE LA MUQUEUSE DU SINUS MAXILLAIRE
Publication
Application
Priority
CN 201921206721 U 20190729
Abstract (en)
[origin: EP3771454A1] A sealing device for repairing perforation of maxillary sinus mucosa, the sealing device has a bag-like structure with an open upper end; consists of an absorbable bio-collagen membrane having a rough surface on one side and a smooth surface on the other side, the closure device comprises a bag mouth and a bag body, the bag mouth is a stitching portion; an inner wall of the bag body is a rough surface and an outer wall of the bag body is a smooth surface. The sealing device for repairing the maxillary sinus mucosal perforation can tightly seal the perforation of any diameter of the maxillary sinus mucosa, prevent bone powder from leaking into the maxillary sinus cavity, exploit the stabilize of the implanted material to realize completeness with the maxillary sinus lift operation in one time, without wait for the second operation after the mucosa has healed, shorten the treatment course, and reduce the patient's pain and economic burden.
IPC 8 full level
A61F 2/18 (2006.01); A61C 8/02 (2006.01); A61L 31/00 (2006.01); A61L 31/04 (2006.01)
CPC (source: CN EP)
A61C 8/0006 (2013.01 - EP); A61C 8/0092 (2013.01 - CN); A61F 2/18 (2013.01 - EP); A61L 31/005 (2013.01 - EP); A61L 31/044 (2013.01 - EP); A61C 8/0092 (2013.01 - EP); A61L 2430/12 (2013.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3771454 A1 20210203; EP 3771454 B1 20221116; CN 112294468 A 20210202; CN 213156625 U 20210511
DOCDB simple family (application)
EP 19220018 A 20191230; CN 202010745092 A 20200729; CN 202021539319 U 20200729